Southside Post Office Hours


Retail Hours

Monday-Friday 10:00am - 5:00pm
Saturday-Sunday Closed

Pickup Services Hours

Monday-Friday 10:00am - 5:00pm
Saturday-Sunday Closed

Monday-Sunday 12:01am - 11:59pm

PO Box Access Hours

Monday-Sunday 12:01am - 11:59pm

USPS Shipping Rate Calculator

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Reginald E Veal (Postmaster) reggie.e.veal@usps.gov
16731 Santa Ana Ave
Fontana, CA 92337

The Southside Post Office is located in the state of California within San Bernardino County. This location serves 37,849 Fontana residents with a median income of $69,553. It's estimated that approximately 60,411 packages pass through this post office each year.

Southside Post Office Location


Fontana California Local Links